90-93-7

Basic information

• Product Name: 4,4'-Bis(diethylamino) benzophenone
• Synonyms: ETHYL MICHLER'S KETONE;4,4'-DIETHYLAMINOBENZOPHENONE;4,4-BIS(DIETHYLAMINO) BENZOPHENONE;4,4'-BIS(DIETHYLAMINO)BENZOPHENONE;MICHLER ETHYLKETONE;MICHLER'S ETHYL KETONE;P,P'-TETRAETHYLDIAMINOBENZOPHENONE;N,N,N',N'-TETRAETHYL-4,4'-DIAMINOBENZOPHENONE
• CAS NO: 90-93-7
• Molecular Formula: C₂₁H₂₈N₂O
• Molecular Weight: 324.46
• EINECS: 202-025-4
• Product Categories: Intermediates of Dyes and Pigments;Aromatic Benzophenones & Derivatives (substituted);Functional Materials;Photopolymerization Initiators;C15 to C38;Carbonyl Compounds;Ketones;Amine Photochemical CoinitiatorsPolymerization Initiators;Benzophenone;Organic Photoinitiators;Polymer Science;Polymerization Initiators
• Mol File: 90-93-7.mol
• Article Data: 6

Chemical Properties

• Melting Point: 89-92 °C(lit.)
• Boiling Point: 475.7 °C at 760 mmHg
• Flash Point: 151 °C
• Appearance: Yellow to yellow-green/Crystalline Granules
• Density: 1.048 g/cm³
• Vapor Pressure: 0Pa at 20℃
• Storage Temp.: Store below +30°C.
• PKA: 4.14±0.32(Predicted)
• Water Solubility: insoluble
• Sensitive: Light Sensitive
• BRN: 2148611
• CAS DataBase Reference: 4,4'-Bis(diethylamino) benzophenone(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-Bis(diethylamino) benzophenone(90-93-7)
• EPA Substance Registry System: 4,4'-Bis(diethylamino) benzophenone(90-93-7)

Safety Data

• Hazard Codes: Xi,N
• Statements: 36/37/38-50/53
• Safety Statements: 26-60-61-36-24/25
• RIDADR: UN 3077 9/PG 3
• WGK Germany: 2
• RTECS: OS9545500
• F: 8
• TSCA: Yes
• HazardClass: 9
• PackingGroup: III
• Hazardous Substances Data: 90-93-7(Hazardous Substances Data)

Usage

Chemical Properties

YELLOW TO YELLOW-GREEN CRYSTALLINE GRANULES

Flammability and Explosibility

Notclassified

Purification Methods

Crystallise the phenone from EtOH (25mL/g) and dry it under vacuum. Its picrate forms yellow needles from EtOH with m 178.5o. [Beilstein 14 II 59.]

Upstream product

• 75-44-5 phosgene 
• 91-66-7 N,N-diethylaniline 
• 65072-47-1 4-diethylaminobenzoyl chloride 
• 134-91-8 4,4'-bis(N,N-diethylamino)benzhydrol 
• 120-21-8 4-Diethylaminobenzaldehyde 
• 2390-59-2 ethyl violet 
• 34041-40-2 (4,4'-bis-diethylamino-benzhydryliden)-aniline 
• 135-91-1 4-(4-(diethylamino)benzyl)-N,N-diethylbenzenamine 

Downstream Products

• 38266-77-2 1,1-bis-(4-diethylamino-phenyl)-propene 
• 135-91-1 4-(4-(diethylamino)benzyl)-N,N-diethylbenzenamine 
• 25642-33-5 4,4'-bis-diethylamino-thiobenzophenone 
• 134-91-8 4,4'-bis(N,N-diethylamino)benzhydrol 
• 97423-02-4 bis-(4-diethylamino-cyclohexyl)-methane 
• 34722-63-9 4-diethylamino-benzoic acid-(4-diethylamino-anilide) 
• 109995-80-4 tetra(4-(diethylamino)phenyl)ethene 
• 42450-16-8 4,4'-bis-diethylamino-benzophenone-imine 
• 596-49-6 ethyl violet 
• 2390-59-2 ethyl violet 
• 81713-57-7 Bis-(4-diethylamino-phenyl)-m-tolyl-methanol 
• 123344-19-4 Bis-(4-diethylamino-phenyl)-(4-dimethylamino-phenyl)-methanol 
• 81713-58-8 Bis-(4-diethylamino-phenyl)-p-tolyl-methanol 

Relevant articles and documents

Preparation method of tetraethyl michler's ketone

The invention relates to a preparation method of tetraethyl Michler's ketone, which comprises the following steps: carrying out acylating chlorination reaction on N, N-diethylaniline and triphosgene as raw materials in a solvent to obtain a reaction intermediate product, then taking a supported catalyst containing Lewis acid as a catalyst, and carrying out reaction on the reaction intermediate product and the N, N-diethylaniline to obtain a target reaction product, namely tetraethyl michler's ketone. Side reactions can be effectively reduced, so that the yield of the target product is increased. After the reaction is finished, the catalyst is collected through solid-liquid separation, so that the separation efficiency is high, and subsequent cyclic utilization is facilitated.

Preparation method of tetraethyl michler's ketone

The invention provides a preparation method of tetraethyl michler's ketone. N, N'-diethyl aniline is taken as a raw material and is subjected to condensation with formaldehyde to obtain intermediate 4,4'-diphenyl methane (diphenylamine) diphenylmethane, and tetraethyl michler's ketone is obtained by oxidizing the intermediate. The preparation method has the advantages of cheap and available raw materials, low reaction temperature, good solubility of the reaction intermediate, good reaction yield, simple and convenient in operation and suitable for industrial production.

COLORED CURABLE COMPOSITIONS, COLOR FILTERS AND PROCESS FOR PRODUCTION THEREOF

The present invention provides a compound represented by the following Formula (C1), or a colored curable composition containing a tetraazaporphyrin colorant having at least one group represented by the following Formula (I), and a color filter using the composition and a manufacturing method thereof: wherein Rc1: a halogen atom, aliphatic group, aryl group, heterocyclic group, cyano group, carboxyl group, carbamoyl group, aliphatic oxycarbonyl group, aryloxycarbonyl group, acyl group, hydroxyl group, aliphatic oxy group, aryloxy group, etc.; Zc1: a non-metal atom group necessary for forming a 6-membered ring together with the carbon atom; M: two hydrogen atoms, a divalent metal atom, divalent metal oxide, divalent metal hydroxide, divalent metal chloride; cm= 0 to 2, cn= 0, 1 to 5; cr1, cr2, cr3, cr4= 0 to 1 (cr1 + cr2 + cr3 + cr4 ≥ 1); L1: an alkylene group; A1 and A2: -O-, -C(=O)-, -OC(=O)-, -C(=O)O-, -N(R2)C(=O)-, -C(=O)N(R2)-, -N(R2)C(=O)-, -OC(=O)N(R2)-, N(R2)C(=O)N(R3)-, -N(R2)SO2-, -SO2N(R2)-, or -SO2-; L2: an alkylene group, aralkylene group, or arylene group; n: an integer from 1 to 3; m: an integer from 0 to 3; R1: a hydrogen atom, alkyl group, aryl group or heterocyclic group; and R2 and R3: a hydrogen atom, alkyl group, aryl group or heterocyclic group.